windows wmi获取bios版本

你可以使用 Windows Management Instrumentation (WMI) 来获取 BIOS 版本。WMI 提供了许多可用于获取系统信息的类，其中一个是 Win32_BIOS 类，它提供了有关计算机上安装的 BIOS 的详细信息，包括 BIOS 版本。

以下是一个使用 WMI 获取 BIOS 版本的示例代码：

#include <Windows.h>
#include <iostream>
#include <comdef.h>
#include <Wbemidl.h>

#pragma comment(lib, "wbemuuid.lib")

using namespace std;

int main()
{
    HRESULT hr = CoInitializeEx(NULL, COINIT_MULTITHREADED);
    if (FAILED(hr))
    {
        cout << "Failed to initialize COM library. Error code: " << hr << endl;
        return 1;
    }

    hr = CoInitializeSecurity(
        NULL,
        -1,
        NULL,
        NULL,
        RPC_C_AUTHN_LEVEL_DEFAULT,
        RPC_C_IMP_LEVEL_IMPERSONATE,
        NULL,
        EOAC_NONE,
        NULL
    );
    if (FAILED(hr))
    {
        CoUninitialize();
        cout << "Failed to initialize security. Error code: " << hr << endl;
        return 1;
    }

    IWbemLocator* pLoc = NULL;
    hr = CoCreateInstance(
        CLSID_WbemLocator,
        0,
        CLSCTX_INPROC_SERVER,
        IID_IWbemLocator,
        (LPVOID*)&pLoc
    );
    if (FAILED(hr))
    {
        CoUninitialize();
        cout << "Failed to create IWbemLocator object. Error code: " << hr << endl;
        return 1;
    }

    IWbemServices* pSvc = NULL;
    hr = pLoc->ConnectServer(
        _bstr_t(L"ROOT\\CIMV2"),
        NULL,
        NULL,
        0,
        NULL,
        0,
        0,
        &pSvc
    );
    if (FAILED(hr))
    {
        pLoc->Release();
        CoUninitialize();
        cout << "Could not connect to WMI server. Error code: " << hr << endl;
        return 1;
    }

    hr = CoSetProxyBlanket(
        pSvc,
        RPC_C_AUTHN_WINNT,
        RPC_C_AUTHZ_NONE,
        NULL,
        RPC_C_AUTHN_LEVEL_CALL,
        RPC_C_IMP_LEVEL_IMPERSONATE,
        NULL,
        EOAC_NONE
    );
    if (FAILED(hr))
    {
        pSvc->Release();
        pLoc->Release();
        CoUninitialize();
        cout << "Could not set proxy blanket. Error code: " << hr << endl;
        return 1;
    }

    IEnumWbemClassObject* pEnumerator = NULL;
    hr = pSvc->ExecQuery(
        _bstr_t("WQL"),
        _bstr_t("SELECT * FROM Win32_BIOS"),
        WBEM_FLAG_FORWARD_ONLY | WBEM_FLAG_RETURN_IMMEDIATELY,
        NULL,
        &pEnumerator
    );
    if (FAILED(hr))
    {
        pSvc->Release();
        pLoc->Release();
        CoUninitialize();
        cout << "Could not execute query. Error code: " << hr << endl;
        return 1;
    }

    IWbemClassObject* pclsObj = NULL;
    ULONG uReturn = 0;
    while (pEnumerator)
    {
        hr = pEnumerator->Next(WBEM_INFINITE, 1, &pclsObj, &uReturn);
        if (uReturn == 0)
        {
            break;
        }
        VARIANT vtProp;
        hr = pclsObj->Get(L"Version", 0, &vtProp, 0, 0);
        if (SUCCEEDED(hr))
        {
            wcout << "BIOS version: " << vtProp.bstrVal << endl;
            VariantClear(&vtProp);
        }
        pclsObj->Release();
    }

    pSvc->Release();
    pLoc->Release();
    pEnumerator->Release();
    CoUninitialize();

    return 0;
}

该程序会输出当前计算机的 BIOS 版本号。需要注意的是，WMI 查询需要一定的权限，有些情况下需要以管理员身份运行程序。